GitHub Copilot's Three-Tier Billing: Why API Teams Face Unexpected Costs

GitHub Copilot's billing has evolved from simple per-seat pricing to a complex three-tier system—seats, premium requests, and GitHub Actions minutes—that significantly impacts API development teams. API repositories are particularly vulnerable because pull requests typically include OpenAPI specifications, generated clients, and comprehensive tests, all consuming Actions minutes for Copilot code review. Proactive cost modeling and spending limits are essential to avoid budget overruns.